Staple-machine



(No Model.) 2 sheets-f-sheet 2.

' J. ADT.

STAPLE MACHINE.

No. 330,364. Patented Nov. 17, 1885.

Zf/Z /EQESIM W m FFlUEt PATENT JOHN ADT, OF NEW HAVEN, CONNECTICUT.

STAPLE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 330,364, dated November17, 1885.

Application filed April 7, 1885.

To all whom it may concern.-

Be it known that I, JOHN ADT, a citizen of the United States, residingat New Haven, in the county of New Haven and State of Connecticut, haveinvented certain new and useful Improvements in Staple-Machines, ofwhich the following is a specification.

This invention refers to machines for making staples of that class inwhich the extension of the inside of each prong of the staple is beveleddownward and outward to an edge, and in which a series of barbs isformed in the inside of the prongs above the said bevels.

The object of this invention is to produce the said staples rapidly andof uniform quality by the use of a style of machine generally known andunderstood by operators in the art of staple-making.

My invention refers specifically, therefore, to the portion of themechanism required to form the bevels and barbs. The chief movements andarrangement of this machine up to the point of forming the bevels andbarbs are substantially the same as those known to the art and usedheretofore, and will therefore only require a condensed description themore clearly to distinguish the added elements of the present invention,which are to bemore fully described and claimed.

In the drawings, Figure 1 is a side View of the blank before it isformed to a staple. Fig. 2 is a side elevation of the machine forproducing the blanks and staples with the side frame removed. Fig. 3 isa top plan view of the complete machine. Fig. 4 is a vertical transversesection on line 0 as viewed in direction of arrow a, and Fig. 5 is alikesection viewed in direction of arrow 6. Fig. 6 is an enlarged transversesectional view of dies.

The conditions of operation in this machine are as follows: first, tofeed the wire or rods up to the stop-piece 1; second, to stop the actionof the feed mechanism; third, to cut the barbs and bevels and separatethe wire; fourth, to bend the blank thus formed into the desired shape,whereby it becomes a staple.

The feed mechanism is not shown in the present illustration, as any oneof the many well-known devices may be employed for this dut Tiie wire isfirst passed through an opening,

Serial No. 161,463. (No model.)

the driving-shaft 9, which act upon the friction-rollers 10, pivotallysecured to the said beam. The forms of the cams are such as to cause thedie to be thrust through the wire and withdrawn very quickly, and thesemovements are so timed relatively to the feed-motion as to take placeimmediately. The end of the wire impinges against the stop-piece. Afterthe withdrawal of the male die, the blank 11, Fig. 4., rests upon thecheeks 12 13, fully separated from the wire or rod at 14. The continuedaction of the machine will now cause one of the formers, 15, secured inthe periphery of the former-wheel 16, fast to the main drivingshaft 9,to strike the blank, as at arrow 17, and thus force it down between thecheeks and cause it to assume the desired form.

By reference to Fig. 6 the action of the dies will be fully apprehended,and by which it will be seen that each thrust of the die finishes oneend of the blank and the contiguous end of the wire, and that the longcentral tooth, 18, which acts to form the bevels 19, Fig. 1, alsoeffects the complete separation of the wire.

The male die is secured to the beam by the clamping-piece 20 and bolt21, by removing which the die is free for inspection or repair.

As shown in the drawings, the action of the cams is such that twostaples are made during each complete revolution. The metal cut from thewire is ejected from the dies and machine through the chute 22.

Adjustment of the die is effected by the wedge-blocks 23, adjustment ofthe formers by the screws 24.

It will be observed that the motion required to be given to the male dieis just suffieient to pass through the wire and back to permit thebending of the blank and renewed feed. This fixed female die and areciprocating male die,

the form of the dies being such that the Wire is severed and barbs aresimultaneously formed in one end of the blank and the contiguous end ofthe wire.

2. In a staple-forming machine, the combination, substantially as hereinset forth, of a fixed grooved female die, a reciprocating male die, theform of the dies being such that the Wire is severed and barbs aresimultaneously formed in one endof the blank and the contiguous end ofthe wire, and a rotary former arranged to impinge upon the blankimmediately after it is severed from the wire.

3. In a staple-forming machine, the combination, substantially as hereinset forth, with a fixed die, of the reciprocating beam, cams on the mainshaft for propelling the same, block 20, secured to the beam, and thedie secured to the block by the wedge-piece.

4. In a staple-forming machine, the combination of a fixed female dieand a reciprocating male die, the'latter being provided With a longcentral tooth to sever the Wire and form the bevels, and having shorterteeth on each side thereof to form the barbs, substantially as hereinset forth.

In testimony whereofI have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN ADT.

Witnesses:

' N. F. MONIEL,

CHARLIE A. SWEET.

